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tatiyna
3 years ago
13

Solve the equation

Mathematics
1 answer:
AlexFokin [52]3 years ago
6 0

Answer:

y = -13

Step-by-step explanation:

5y + 2(y - 2) = 8y - 3(7 - 10)

5y + 2y - 4 = 8y - 21 + 30

7y - 4 = 8y + 9

-4 = y + 9

-13 = y

y = -13

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The scale on the map says that 1.5 cm represents 40 miles. On the map the measurement between Nashville, TN and Atlanta, GA is 1
Anna11 [10]
Divide 12  by 1.5 so you have a number you can directly multiple with 40. 
12/1.5 = 8
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8(40) = 320
5 0
3 years ago
Which of the following correctly completes the square for: x^2+2x=48
Ket [755]

Answer:

(x+1)²= 49, the answer is B

Step-by-step explanation:

x² + 2x = 48

x² + 2x + (2/2)² -  (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² -  (2/2)²]

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3 years ago
Read 2 more answers
Which number lint represents the solution set for the inequity -1/2x>4
g100num [7]

Answer:

B. x < -8

Step-by-step explanation:

Well first we need to get x by itself.

To do that we do 4 / -1/2 = -8

And since a negative was divided the > changes to a <.

So x<-8.

If x is less than -8 the line starts at -8 and goes to the left.

<em>Thus,</em>

<em>the answer is choice b.</em>

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<em>Hope this helps :)</em>

5 0
3 years ago
Which event has a probability of 1/2? Select all that apply.
Ymorist [56]
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4 0
2 years ago
Hi! Please help me, will mark brainliest!
PIT_PIT [208]

Answer:

p(t) = 0 for t = 1

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Step-by-step explanation:

the graph you will have to do yourself.

just go there and type in

-  log_{8}(x)

well, don't type "log" in letters.

you start by typing the "-" sign, and then you need to look up the functions by clicking on the "funcs" button and look for the log functions .

pick the

log_{a}

option. and then simply enter 8 as the first parameter in the {} brackets and x as the second in the () brackets.

and then you see.

any logarithm is 0 for x (or t) = 1.

because any a⁰ = 1.

and the logarithm gives you that exponent of the base number that leads to the given x value.

in other words : a logarithm is the inverse function of an exponential function.

the exponential function is

y = a^x

and the logarithm then determines

x =  log_{a}(y)

that is all.

and

-  log_{8}(x)  = 1

means that the logarithm itself delivered -1.

and 8^-1 = 1/8

so, p(t) = 1 for t = 1/8

5 0
2 years ago
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